The answer is quite simple. Conservatives and Republicans are smarter. People in lower class neighborhoods are living in lower class neighborhoods because their income is across the board lower than those living more prosperous 'hoods. Uneducated, ignorant people, are being infected at a much higher rate than people who have college degrees and can afford to live better than the people that didn't pay attention in high school.
The Pew Research Center found that the yearly income gap between high school and college graduates is around $17,500

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